Je suis allé sur www.soundblaster.com, et je suis allé voir les FAQ. Y a un truc qui ressemble à mon problème, voila ce qu´ils me proposent...
"Windows does not seem to be recognizing my Sound Blaster Live! 5.1. It did not have this problem with the sound card on my motherboard."
Before installing your new Sound Blaster Live! 5.1 product, we would recommend that you remove the drivers and any associated software applications from your previous audio card. This may often be accomplished using the Add/Remove Programs icon in Windows Control panel, however it is best to refer to the instructions provided by the manufacturer.
If an audio card is incorporated into motherboard of your system, it will be necessary to disable both the on-board audio and the game port on the motherboard. Disabling on-board audio generally requires changes to the CMOS settings for the BIOS of the motherboard. If you are not comfortable making changes at this level, we would suggest seeking the assistance of a technically advanced friend or a professional computer technician.
In some cases it may not be possible to disable the game port on a motherboard, in those situations, we would recommend disabling the game port on the Sound Blaster Live! 5.1 card and using the game port on the motherboard. A system can only support one game port.